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A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series with a resistance box and a 2 volt battery. If a potential difference of 100mV is balanced across the whole length of potentiometer wire, then the resistance introduced in the resistance will be
Options
(a) 1900Ω
(b) 900Ω
(c) 190Ω
(d) 90Ω
Correct Answer:
190Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field
- A toroid having 200 turns carries a current of 1 A. The average radius of the toroid
- A lift is moving down with acceleration a.A man in the lift drops a ball
- Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series
- A particle executing simple harmonic motion of amplitude 5 cm has maximum
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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